What’s Vulnerable › Vulnerabilities

CVE-2019-1221

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 19.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-09-11 · updated 2026-06-17
• Weakness: CWE-787

Description

A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer, aka 'Scripting Engine Memory Corruption Vulnerability'.

Affected products

• Microsoft Internet Explorer 11: 11
• Microsoft Internet Explorer 11: Windows 7 for 32-bit Systems Service Pack 1, Windows 7 for x64-based Systems Service Pack 1, Windows Server 2008 R2 for x64-based Systems Service Pack 1, Windows 8.1 for 32-bit systems, Windows 8.1 for x64-based systems, Windows Server 2012 R2 (+18)
• Microsoft Internet Explorer 11 on Windows 10 Version 1903 for 32-bit Systems: all versions
• Microsoft Internet Explorer 11 on Windows 10 Version 1903 for ARM64-based Systems: all versions
• Microsoft Internet Explorer 11 on Windows 10 Version 1903 for x64-based Systems: all versions
• Microsoft Internet Explorer 11 on Windows Server 2012: all versions

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1221
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1221

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